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but·ton

(bŭt'ŏn),
A knob-shaped structure, lesion, or device.
[M.E., fr. O.Fr. bouton, fr. bouter, to thrust, fr. Germanic]
Farlex Partner Medical Dictionary © Farlex 2012

button

Drug slang
A regional term for mescaline.

Radiation safety
A hockey puck-like mass of plutonium nitrate which is a starting material for bomb-grade plutonium.
 
Transfusion medicine
An aggregate of red blood cells (RBCs) adherent to the bottom of a test tube after centrifugation; if with gentle shaking of the test tube the cells remain adherent, agglutination is assumed to have occurred, implying presence of both an antigen (on the RBCs) and a specific antibody (immunoglobulins) in the serum button.
 
Vox populi
See Panic button.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

but·ton

(bŭt'ŏn)
A structure, lesion, or deviceof knob shape.
[M.E., fr. O.Fr. bouton, fr.bouter, to thrust, fr. Germanic]
Medical Dictionary for the Health Professions and Nursing © Farlex 2012

button 

The preformed piece of glass which will become the segment of a fused bifocal or multifocal lens. It is ground and polished on one side to the appropriate curvature for fusing to the main lens (British Standard). See bifocal lens.
Millodot: Dictionary of Optometry and Visual Science, 7th edition. © 2009 Butterworth-Heinemann

but·ton

(bŭt'ŏn)
A structure, lesion, or device of knob shape.
[M.E., fr. O.Fr. bouton, fr. bouter, to thrust, fr. Germanic]
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
CTV will be pushing its film "The Buttoners" (Knoflikari), recent winner of an award at Rotterdam as well as top domestic film prizes.
A critical and cult success in the Czech Republic, Petr Zelenka's "Buttoners" is an affectionate homage to the spontaneity and eccentric irony of the 1960s Czech New Wave comedies.
Petr Zelenka's "Buttoners" is a playful black comedy that recalls the Czech New Wave films of the 1960s.